Arroyo has been limited with a back issue during camp. He said he plans to rejoin the rotation once the team comes back from Australia. Arroyo posted a 3.79 ERA in 202 innings last year.
Back spasms had
Norris has experienced the same symptons before. He missed some games last August with back spasms.
Scutaro has been limited by back and finger issues during camp. He's hoping to make his spring debut Sunday or Monday. Scutaro said his back has been feeling much better recently. He added that he believes he'll be ready for opening day.
The 38-year-old Scutaro hit .297/.357/.369 in 488 at-bats last year.
Penny has been ineffective since 2008. He last pitched in the majors with San Francisco in 2012.
His absence will be a blow to what was a sensational bullpen in 2013. Hochevar blossomed as a reliever after starting from 2008 to 2012. The former first pick of the draft went 5-2 with a 1.92 ERA. He yielded just 41 hits and fanned 82 in 70 1/3 innings.
"I don't have anything to say to those cats," he told MLB.com. "They know that the deal is. They just talk about how I was falling off and declining. How the [expletive] am I declining? I had 100 ... ribbies last year. And I did that with one ... hand. And I won a Gold Glove? So how the [expletive] am I declining? Come on, man."
Phillips indeed remained productive last year despite a .263 batting average that tied his lowest since he arrived in Cincinnati in 2006. His 103 RBI was a career-high.
The team has taken it easy on Salazar, who will turn 24 years old on Tuesday. He could start the season as the fifth starter to give him more time to prepare.
Hill is coming off a difficult season in which he compiled a 6.28 ERA in 63 appearances with Cleveland. He struggled with his control as a specialist against left-handed batters, walking 29 in 38 2/3 innings.
Headley is dealing with a calf injury, which has limited his production during camp. He's planning to do some jogging Friday as well. Headley said he feels great. Headley hit .250/.347/.400 in 520 at-bats last year.